Buffer by elevation

Question

Would anyone be able to direct me to the right tool or tools that will take a POLYLINE (or polyline raster) overlain with a DEM raster, and obtain a 5 feet HIGHER area than the height of the floodplain boundary?   Many places say to use the Euclidean Allocation tool, but the documentation for that is lacking -in my opinion.  It does not perform the function I'm seeking.
Thank you.

Stacy

XanderBakker · Answer

Not entirely sure, but you can probably use the script in this post to get that result (although you are not looking for a floodplain):

Determine Floodplain: Based on known flood level

StacyCulpepper · Answer

I for one, was never given a satisfactory answer.  I'm not still looking

either.  The project I needed that info for was 3 years ago, haven't needed

it since.

Stacy

VinayAchrekar2 · Answer

Has anyone found an answer to this?